// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2011 Benoit Jacob <jacob.benoit.1@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.

#if defined EIGEN_TEST_PART_1 || defined EIGEN_TEST_PART_2 || defined EIGEN_TEST_PART_3 || defined EIGEN_TEST_PART_4
#define EIGEN_DONT_ALIGN
#elif defined EIGEN_TEST_PART_5 || defined EIGEN_TEST_PART_6 || defined EIGEN_TEST_PART_7 || defined EIGEN_TEST_PART_8
#define EIGEN_DONT_ALIGN_STATICALLY
#endif

#include "main.h"
#include <Eigen/Dense>

template<typename MatrixType>
void
dontalign(const MatrixType& m)
{
	typedef typename MatrixType::Scalar Scalar;
	typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> VectorType;
	typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, MatrixType::RowsAtCompileTime> SquareMatrixType;

	Index rows = m.rows();
	Index cols = m.cols();

	MatrixType a = MatrixType::Random(rows, cols);
	SquareMatrixType square = SquareMatrixType::Random(rows, rows);
	VectorType v = VectorType::Random(rows);

	VERIFY_IS_APPROX(v, square * square.colPivHouseholderQr().solve(v));
	square = square.inverse().eval();
	a = square * a;
	square = square * square;
	v = square * v;
	v = a.adjoint() * v;
	VERIFY(square.determinant() != Scalar(0));

	// bug 219: MapAligned() was giving an assert with EIGEN_DONT_ALIGN, because Map Flags were miscomputed
	Scalar* array = internal::aligned_new<Scalar>(rows);
	v = VectorType::MapAligned(array, rows);
	internal::aligned_delete(array, rows);
}

EIGEN_DECLARE_TEST(dontalign)
{
#if defined EIGEN_TEST_PART_1 || defined EIGEN_TEST_PART_5
	dontalign(Matrix3d());
	dontalign(Matrix4f());
#elif defined EIGEN_TEST_PART_2 || defined EIGEN_TEST_PART_6
	dontalign(Matrix3cd());
	dontalign(Matrix4cf());
#elif defined EIGEN_TEST_PART_3 || defined EIGEN_TEST_PART_7
	dontalign(Matrix<float, 32, 32>());
	dontalign(Matrix<std::complex<float>, 32, 32>());
#elif defined EIGEN_TEST_PART_4 || defined EIGEN_TEST_PART_8
	dontalign(MatrixXd(32, 32));
	dontalign(MatrixXcf(32, 32));
#endif
}
